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NFM-20-24
AC/DC Open Frame Power Supply (PSU), Medical, 1 Output, 22.08 W, 85V AC to 264V AC
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- Manufacturer: MEAN WELL
- Product type: AC / DC Open Frame Power Supplies
- SVHC: No SVHC (12-Jan-2017)
- Product Range: NFM-20 Series
- No. of Outputs: 1 Output
- Input Voltage VAC: 85V AC to 264V AC
- Power Supply Output Type: Adjustable, Fixed
- Output Current - Output 1: 920mA
- Output Current - Output 2: -
- Output Current - Output 3: -
- Output Current - Output 4: -
- Output Voltage - Output 1: 24VDC
- Output Voltage - Output 2: -
- Output Voltage - Output 3: -
- Output Voltage - Output 4: -
- Power Supply Applications: Medical
- Power Rating (Forced Cooling): -
- Power Rating (Convection Cooling): 22.08W
| Delivery and price | |
|---|---|
| Units per pack | 1 |
| Price | 17.28 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
**- NFM 20 series** ## MEAN WELL 20W Single Output Medical Grade Switching Power Supply **- series** ~~a~~ ## ■ ## **SPECIFICATION** |**SPECIFICATION**<br>Seana<br>VN<br>CBCE|**SPECIFICATION**<br>Seana<br>VN<br>CBCE||Seana|Seana|VN|CBCE| |---|---|---|---|---|---|---| |**MODEL**<br>**DC VOLTAGE**<br>**RATED CURRENT**<br>**CURRENT RANGE**<br>**RATED POWER**<br>**OUTPUT**<br>**VOLTAGE ADJ. RANGE**<br>**LINE REGULATION**<br>**LOAD REGULATION**<br>**SETUP, RISE TIME**<br>**HOLD UP TIME (Typ.)**<br>**VOLTAGE RANGE**<br>**FREQUENCY RANGE**<br>**EFFICIENCY (Typ.)**<br>**INPUT**<br>**INRUSH CURRENT (Typ.)**<br>**WITHSTAND VOLTAGE**<br>**ISOLATION RESISTANCE**<br>**WORKING HUMIDITY**<br>**WORKING TEMP.**<br>**STORAGE TEMP., HUMIDITY**<br>**TEMP. COEFFICIENT**<br>**VIBRATION**<br>**MTBF**<br>**DIMENSION**<br>**OTHERS**<br>**NOTE**<br>**PACKING**<br>**OVERLOAD**<br>**OVER VOLTAGE**<br>**OVER TEMPERATURE Note.5**<br>**AC CURRENT (Typ.)**<br>500ms, 20ms/230VAC 500ms, 20ms/115VAC at full load<br>50ms/230VAC 15ms/115VAC at full load<br>85 ~ 264VAC 120 ~ 370VDC<br>47 ~ 440Hz<br>75%<br>71%<br>81%<br>13.8 ~ 16.2V<br>83%<br>17.25 ~ 20.25V<br>84%<br>27.6 ~ 32.4V<br>0.6A/115VAC 0.4A/230VAC<br>COLD START 30A/115VAC 65A/230VAC<br>Above 105% rated output power<br>5.75 ~ 6.75V<br>3.8 ~ 4.46V<br>Protection type : Hiccup mode, recovers automatically after fault condition is removed<br>Shut down o/p voltage, recovers automatically after temperature goes down<br>20 ~ 90% RH non-condensing<br>-20 ~ +60<br>(Refer to "Derating Curve")<br>℃<br>-40 ~ +85<br>, 10 ~ 95% RH<br>℃<br>±<br>℃<br>℃<br>0.03%/<br>(0 ~ 50<br>)<br>10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes<br>487.8Khrs min. MIL-HDBK-217F (25<br>)<br>℃<br>89*51*19.3mm (L*W*H)<br>0.09Kg; 105pcs/10.5Kg/0.97CUFT<br>±1.5%<br>±1.5%<br>±0.5%<br>±0.5%<br>±0.5%<br>±0.5%<br>±0.5%<br>±0.5%<br>±1.0%<br>±1.0%<br>±2.0%<br>±2.0%<br>±1.0%<br>±1.0%<br>±1.0%<br>80mVp-p<br>80mVp-p<br>150mVp-p<br>150mVp-p<br>240mVp-p<br>3.3V<br>12V<br>15V<br>24V<br>4.4A<br>4.5A<br>1.8A<br>1.4A<br>0.92A<br>0 ~ 4.4A<br>0 ~ 4.5A<br>0 ~ 1.8A<br>0 ~ 1.4A<br>0 ~ 0.92A<br>22W<br>14.85W<br>21.6W<br>21W<br>22.08W<br>**NFM-20-5**<br>**NFM-20-12**<br>**NFM-20-15**<br>**NFM-20-24**<br>**NFM-20-3.3**<br>**SAFETY STANDARDS**<br>**RIPPLE & NOISE (max.) Note.2**<br>**VOLTAGE TOLERANCE Note.3**<br>℃<br>℃<br>℃<br>**ENVIRONMENT**<br>**SAFETY &**<br>**EMC**<br>**(Note 4)**<br>**PROTECTION**<br>Protection type : Shut off o/p voltage, clamping by zener diode<br>10.8 ~ 13.2V<br>13.5 ~ 16.5V<br>21.6 ~ 26.4V<br>4.5 ~ 5.4V<br>3.1 ~ 3.6V<br>Compliance to EN55011(CISPR11),EN55032 (CISPR32) Class B, EN61000-3-2,-3, EAC TP TC 020<br>**LEAKAGE CURRENT**<br>**Note.6**<br>Compliance to EN61000-4-2,3,4,5,6,8,11, EN55024, EN60601-1-2, EN61204-3, medical level, criteria A, EAC TP TC 020<br>I/P-O/P:4KVAC I/P-FG:2KVAC O/P-FG:1.5KVAC<br>I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25<br>/ 70% RH<br>℃<br>ANSI/AAMI ES60601-1,TUV EN60601-1, IEC60601-1<br>approved<br>,EAC TP TC 004<br>5V<br>**EMC IMMUNITY**<br>**EMC EMISSION**<br>Earth leakage current < 300 A/264VAC , Touch current < 100 A/264VAC<br>μ<br>μ<br>**ISOLATION LEVEL**<br>Primary-Secondary: 2xMOPP, Primary-Earth:1xMOPP, Secondary-Earth:1xMOPP<br>NRND<br>Seana<br>VN<br>CBCE<br>1. All parameters NOT specially mentioned are measured at230VAC input, rated load and 25 _ of ambient temperature.<br>2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor.<br>3. Tolerance: includes set up tolerance, line regulation and load regulation.<br>4. The power supply is considered a component which will be installed into a final equipment. All the EMC tests are been executed by mounting the unit on<br>a360mm*360mm metal plate with 1mm of thickness. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to<br>perform these EMC tests, please refer to “EMI testing of component power supplies.” (as available on http://www.meanwell.com)<br>5. The over temperature protection (OTP) is the built-in function of the control IC (U1). The activating level described above is based on the specification<br>provided by the IC manufacturer.<br>6. Touch currentwas measured from primary input to DC output.<br>7. The ambient temperature derating of 3.5<br>/1000m with fanless models and of<br>5<br>/1000m with fan models for operating altitude higher than 2000m(6500ft)||**NFM-20-3.3**|**NFM-20-5**<br>Seana|**NFM-20-12**<br>**NFM-20-15**<br>Seana|**NFM-20-15**<br>VN|**NFM-20-24**<br>CBCE| ||**DC VOLTAGE**|3.3V|5V|12V<br>15V|15V|24V| ||**RATED CURRENT**|4.5A|4.4A|1.8A<br>1.4A|1.4A|0.92A| ||**CURRENT RANGE**|0 ~ 4.5A|0 ~ 4.4A|0 ~ 1.8A<br>0 ~ 1.4A|0 ~ 1.4A|0 ~ 0.92A| ||**RATED POWER**|14.85W|22W|21.6W<br>21W|21W|22.08W| ||**RIPPLE & NOISE (max.) Note.2**|80mVp-p<br>NRND|80mVp-p<br>NRND|150mVp-p<br>150mVp-p<br>NRND|150mVp-p|240mVp-p| ||**VOLTAGE ADJ. RANGE**|3.1 ~ 3.6V<br>NRND|4.5 ~ 5.4V<br>NRND|10.8 ~ 13.2V<br>13.5 ~ 16.5V<br>NRND|13.5 ~ 16.5V|21.6 ~ 26.4V| ||**VOLTAGE TOLERANCE Note.3**|±2.0%<br>NRND|±2.0%<br>NRND|±1.0%<br>±<br>NRND|±1.0%|±1.0%| ||**LINE REGULATION**|±1.0%<br>NRND|±1.0%<br>NRND|±0.5%<br>±<br>NRND|±0.5%|±0.5%| ||**LOAD REGULATION**|±1.5%<br>NRND|±1.5%<br>NRND|±0.5%<br>±<br>NRND|±0.5%|±0.5%| ||**SETUP, RISE TIME**|500ms, 20ms/230VAC 500ms, 20ms/115VAC at full load<br>NRND||||| ||**HOLD UP TIME (Typ.)**|50ms/230VAC 15ms/115VAC at full load<br>NRND||||| ||**VOLTAGE RANGE**|85 ~ 264VAC 120 ~ 370VDC<br>NRND||||| ||**FREQUENCY RANGE**|47 ~ 440Hz<br>NRND||||| ||**EFFICIENCY (Typ.)**|71%<br>NRND|75%<br>NRND|81%<br>83%<br>NRND|83%|84%| ||**AC CURRENT (Typ.)**|0.6A/115VAC 0.4A/230VAC<br>NRND||||| ||**INRUSH CURRENT (Typ.)**|COLD START 30A/115VAC 65A/230VAC<br>NRND||||| ||**LEAKAGE CURRENT**<br>**Note.6**|Earth leakage current < 300 A/264VAC , Touch current < 100 A/264VAC<br>μ<br>μ<br>NRND||||| ||**OVERLOAD**|Above 105% rated output power<br>Protection type : Hiccup mode, recovers automatically after fault condition is removed<br>NRND||||| ||**OVER VOLTAGE**|13.8 ~ 16.2V<br>17.25 ~ 20.25V<br>27.6 ~ 32.4V<br>5.75 ~ 6.75V<br>3.8 ~ 4.46V<br>Protection type : Shut off o/p voltage, clamping by zener diode<br>NRND||||| ||**WORKING TEMP.**<br>**OVER TEMPERATURE Note.5**|Shut down o/p voltage, recovers automatically after temperature goes down<br>-20 ~ +60<br>(Refer to "Derating Curve")<br>℃||||| ||**WORKING HUMIDITY**|20 ~ 90% RH non-condensing||||| ||**STORAGE TEMP., HUMIDITY**|-40 ~ +85<br>, 10 ~ 95% RH<br>℃||||| ||**TEMP. COEFFICIENT**|±<br>℃<br>℃<br>0.03%/<br>(0 ~ 50<br>)||||| ||**VIBRATION**|10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes||||| ||**SAFETY STANDARDS**|ANSI/AAMI ES60601-1,TUV EN60601-1, IEC60601-1<br>approved<br>,EAC TP TC 004||||| ||**ISOLATION LEVEL**|Primary-Secondary: 2xMOPP, Primary-Earth:1xMOPP, Secondary-Earth:1xMOPP||||| ||**WITHSTAND VOLTAGE**|I/P-O/P:4KVAC I/P-FG:2KVAC O/P-FG:1.5KVAC||||| ||**ISOLATION RESISTANCE**|I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25<br>/ 70% RH<br>℃||||| ||**EMC EMISSION**|Compliance to EN55011(CISPR11),EN55032 (CISPR32) Class B, EN61000-3-2,-3, EAC TP TC 020||||| ||**EMC IMMUNITY**|Compliance to EN61000-4-2,3,4,5,6,8,11, EN55024, EN60601-1-2, EN61204-3, medical level, criteria A, EAC TP TC 020||||| ||**MTBF**|487.8Khrs min. MIL-HDBK-217F (25<br>)<br>℃||||| ||**DIMENSION**|89*51*19.3mm (L*W*H)||||| ||**PACKING**|0.09Kg; 105pcs/10.5Kg/0.97CUFT||||| ||℃<br>℃<br>℃<br>1. All parameters NOT specially mentioned are measured at230VAC input, rated load and 25 _ of ambient temperature.<br>2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor.<br>3. Tolerance: includes set up tolerance, line regulation and load regulation.<br>4. The power supply is considered a component which will be installed into a final equipment. All the EMC tests are been executed by mounting the unit on<br>a360mm*360mm metal plate with 1mm of thickness. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to<br>perform these EMC tests, please refer to “EMI testing of component power supplies.” (as available on http://www.meanwell.com)<br>5. The over temperature protection (OTP) is the built-in function of the control IC (U1). The activating level described above is based on the specification<br>provided by the IC manufacturer.<br>6. Touch currentwas measured from primary input to DC output.<br>7. The ambient temperature derating of 3.5<br>/1000m with fanless models and of<br>5<br>/1000m with fan models for operating altitude higher than 2000m(6500ft)|||||| _File Name:NFM-20-SPEC 2018-01-12_ **- NFM 20 series** ## 20W Single Output Medical Grade Switching Power Supply **==> picture [511 x 668] intentionally omitted <==** **----- Start of picture text -----**<br> Mechanical Specification Unit:inch(mm)<br>3.5"(88.9mm)<br>0.15"<br>(3.8mm) 3.2"(81.3mm)<br>4-0.12"(3.0mm) Dia<br>Mounting Holes<br>T2A/250V<br>CN2<br>3 1<br>2 2<br>1 3<br>4<br>T2A/250V<br>M1 M2 1.M1 is safety ground. For better EMC<br>performance,Please secure an electrical<br>connection between M1,M2 and chassis<br>grounding.<br>AC Input Connector (CN1) : Molex 41791-03 or equivalent DC Output Connector (CN2) : Molex 41791-04 or equivalent<br>Pin No. Assignment Mating Housing Terminal Pin No. Assignment Mating Housing Terminal<br>1 AC/N 1,2 +V Molex 2139 Molex 2478<br>Molex 2139 Molex 2478<br>2 No Pin or equivalent or equivalent 3,4 -V or equivalent or equivalent<br>3 AC/L<br>: Grounding Required<br>Block Diagram<br>fosc : 90KHz<br>EMI RECTIFIERS POWER RECTIFIERS +V<br>I/P FILTER & SWITCHING & -V<br>FILTER FILTER<br>PWM<br>CONTROL DETECTION<br>FG CIRCUIT<br>Derating Curve Output Derating VS Input Voltage<br>100<br>100<br>90<br>80<br>80<br>60 70<br>60<br>40<br>50<br>20<br>40<br>-20 0 10 20 30 40 50 60 70 (HORIZONTAL) 85 95 100 115 120 140 160 180 200 220 240 264<br>AMBIENT TEMPERATURE ( ℃ ) INPUT VOLTAGE (VAC) 60Hz<br>NRND<br>LOAD (%) LOAD (%)<br>0.15"(3.8mm)<br>2"(50.8mm) 1.7"(43.2mm) CN1<br>0.76"(19.3mm)<br>**----- End of picture text -----**<br> _File Name:NFM-20-SPEC 2018-01-12_
Updated at June 10, 2026
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